| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 1350.1 | USD | 20250922 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 1349.68 | USD | 20250919 |
| Shanghai SKY Chem Industrial Co., Ltd. | China national standards | MT | 1350.5 | USD | 20250918 |